Supervised weekly rinsing with a 0.2 % neutral NaF solution: results after 5 years

Ripa, Louis W.; Leske, Gary S.; Sposato, Alice Levinson; Rebich, Theodore

doi:10.1111/j.1600-0528.1983.tb01346.x

Cited by 11 publications

(5 citation statements)

References 7 publications

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“…3, 4), it becomes apparent that differences in caries progression observed between the two exper imental groups are solely on account of more pro nounced caries initiation in the lower fluoride group. This finding is in agreement with observations from clinical trials of topical agents, where the differences in the caries reduction are seldom observed after the 1st year, implying that the benefit is mostly in the re tarded initiation of new lesions, while the reduction is far less, if any at all, in the progress of the already es tablished caries [Ripa et al, 1983].…”

Section: Discussionsupporting

confidence: 82%

Effect of Different Fluoride Levels in Dentifrice on the Development of Approximal Caries

Bjarnason

Finnbogason²

1991

Caries Res

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The development of approximal carious lesions was monitored on annual bite-wing radiographs obtained from 315 childen, participating in a controlled dentifrice trial; 157 of these children had used a dentifrice containing 250 ppm F and 158 a dentifrice containing 1,000 ppm F (both as NaF) during a 3-year period as the sole fluoride supplement. The total number of surfaces recorded was 6,099 at the baseline and 7,358 at the final examination. In the 250-ppm F group 393 approximal lesions (297 in the outer half, 96 in the inner half of the enamel) and in the 1,000-ppm F group 399 lesions (319 and 80, respectively) were diagnosed at the baseline examination. After 3 years the fraction of sound surfaces had decreased from 79% at baseline in both groups to 54% in the low-F group and to 58% in the high-F group. Concurrently, the relative number of enamel lesions had increased from 13% in both groups to 26% in the low-F group and 24% in the high-F group. 66% of the surfaces in the low-F group and 60% in the high-F group remained sound, and the relative proportion of static enamel lesions was 26 and 28%, respectively. The differences did not reach statistical significance. The results imply that higher fluoride levels in the dentifrice are more effective in retarding the initiation of caries, while they do not differ with respect to the progression of radiographically detectable approximal carious lesions.

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Section: Discussionsupporting

confidence: 82%

Effect of Different Fluoride Levels in Dentifrice on the Development of Approximal Caries

Bjarnason

Finnbogason²

1991

Caries Res

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“…This agrees closely with the hypotheses of Disney et al (1990), who suggested that only the use of popular¯uoride products such as dentifrice, gel and varnish can lead to a signi®cant prevention of dental caries. The reduction achieved by following this programme as described by Ripa et al (1983) could be partly con®rmed in the BELCAP study.…”

Section: Belo Horizonte Caries Prevention Studymentioning

confidence: 80%

The Zero-Inflated Poisson Model and the Decayed, Missing and Filled Teeth Index in Dental Epidemiology

Böhning

Dietz

Schlattmann

et al. 1999

Journal of the Royal Statistical Society Series A: Statistics in Society

326

243

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For frequency counts, the situation of extra zeros often arises in biomedical applications. This is demonstrated with count data from a dental epidemiological study in Belo Horizonte (the Belo Horizonte caries prevention study) which evaluated various programmes for reducing caries. Extra zeros, however, violate the variance±mean relationship of the Poisson error structure. This extra-Poisson variation can easily be explained by a special mixture model, the zero-in¯ated Poisson (ZIP) model. On the basis of the ZIP model, a graphical device is presented which not only summarizes the mixing distribution but also provides visual information about the overall mean. This device can be exploited to evaluate and compare various groups. Ways are discussed to include covariates and to develop an extension of the conventional Poisson regression. Finally, a method to evaluate intervention effects on the basis of the ZIP regression model is described and applied to the data of the Belo Horizonte caries prevention study.

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“…The effect of fluoride mouthrinses on the incidence of caries in children has been extensively investigated during the past four decades in a large number of clinical trials. These have demonstrated the effectiveness of fluoride mouth rinses in reducing dental caries by 15–45% over a period of 2–6 years (2–5). A Cochrane review by Marinho et al.…”

mentioning

confidence: 99%

A school‐based fluoride mouth rinsing programme in Sarawak: a 3‐year field study

Chen¹,

Ling²,

R.³

et al. 2010

Comm Dent Oral Epid

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Supervised weekly rinsing with a 0.2 % neutral NaF solution: results after 5 years

Cited by 11 publications

References 7 publications

Effect of Different Fluoride Levels in Dentifrice on the Development of Approximal Caries

Effect of Different Fluoride Levels in Dentifrice on the Development of Approximal Caries

The Zero-Inflated Poisson Model and the Decayed, Missing and Filled Teeth Index in Dental Epidemiology

A school‐based fluoride mouth rinsing programme in Sarawak: a 3‐year field study

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